Fluid flow conditioner

Inactive Publication Date: 2011-03-03
FLUID COMPONENTS INTERNATIONAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0009]The embodiments disclosed herein address some shortcomings in the prior art of measuring flowing media within a conduit. The problems associated with the length of straight run requirements in industrial flow metering for about 20 diameters upstream are addressed by flow conditioners disclosed herein. Embodiments are disclosed for flow conditioning that can be accompl

Problems solved by technology

When using thermal flow meters, the accuracy of mass flow rate measurements of media traveling within a conduit can be adversely affected by random and unpredictable turbulence within the flowing media, as well as by the fact that flow rates are not uniform across the conduit cross section.
Random turbulence, or non-uniform flow, within the flowing media introduces inconsistencies in the transducer readings.
The elements employed by thermal dispersion mass flow meters can suffer accuracy problems due to

Method used

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Examples

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Embodiment Construction

[0023]According to various embodiments for flow conditioning, the media that flows within a conduit can be either a gaseous or a liquid substance, so the term “fluid” may be used to include both. Therefore, the embodiments described herein should not be seen as limiting and the scope of the invention should be measured as defined by the appended claims. These embodiments generally describe gaseous media flowing within a conduit, but it should be understood that liquid embodiments are also envisioned. Also, the metering systems illustrated in these embodiments are generally thermal flow meters to measure flow of media within a conduit using transducer elements and it should be understood that other measuring elements can also be used with the flow conditioners described herein. Any type of thermal flow metering system may be employed, including differential temperature, differential power, and differential current, for example. It is also envisioned that alterations may be made to th...

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Abstract

A device and method for conditioning media flowing within a conduit enabling sensors placed within short straight run distances to measure media flow with improved accuracy employing a thermal flow instrument. A flow conditioner downstream of a media flow measuring transducer has walls that diverge in the flow direction to optimize readings of the media flow from the transducer.

Description

FIELD OF THE INVENTION [0001]The invention relates generally to devices that condition flowing media within a conduit, and more particularly, to such devices that condition flowing media to enable more accurate readings of thermal flow sensors used to measure the flowing media.BACKGROUND OF THE INVENTION [0002]When using thermal flow meters, the accuracy of mass flow rate measurements of media traveling within a conduit can be adversely affected by random and unpredictable turbulence within the flowing media, as well as by the fact that flow rates are not uniform across the conduit cross section. Flow meters typically employ high performance sensing elements that can be uniquely designed for application requirements with precision signal processing and calibration of sensing elements and transmitting electronics. Random turbulence, or non-uniform flow, within the flowing media introduces inconsistencies in the transducer readings.[0003]Thermal dispersion flow meters are well known a...

Claims

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Application Information

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IPC IPC(8): F15D1/04
CPCG01F1/6842G01F1/68G01F1/684G01F1/6847
Inventor WIBLE, ERICNOEL, MICHAEL R.MCDOLE, BRIAN
Owner FLUID COMPONENTS INTERNATIONAL
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